| Abbreviation | Definition |
|---|---|
| MOBI | This is a computing file formatting application used in file conversion. It stands for mobile. |
| MOD | Amiga MODule format Music |
| MOD | EPOC MODel definitions file |
| MOD | Microsoft Multiplan Spreadsheet |
| MOD | Model definitions (EPOC) |
| MOD | Modula 2 Language Source Code File |
| MOD | Windows 3.x Kernel MODule |
| MOI | lisez.moi (read.me in French) |
| MOL | MDL Molfile |
| MOM | My Online Manager |
| MON | MONitor description |
| MOO | MoonRock language source code file |
| MOV | Movie (AutoCAD AutoFlix) |
| MOV | Timebased multimedia file (Apple QuickTime) |
| MOZ | Temporary cache file (Netscape) |
| MP | Movie (MPEG compressed) |
| MP2 | MPEG-1 Layer II Audio Stream Sound file |
| MP3 | MPEG (Motion Picture Experts Group) Layer-3 sound file |
| MP4 | MPEG-4 Part 14 |
| MPA | MPEG-1 audio stream Sound file |